APA (7th ed.) Citation

Hepple, P. (1966). Natural Gas: Proceedings of a symposium held by the Exploration and Production Group of the Institute of Petroleum London, 17. 6. 1966. Inst. of Petroleum <<[u.a.]>>.

Chicago Style (17th ed.) Citation

Hepple, Peter. Natural Gas: Proceedings of a Symposium Held by the Exploration and Production Group of the Institute of Petroleum London, 17. 6. 1966. London <<[u.a.]>>: Inst. of Petroleum <<[u.a.]>>, 1966.

MLA (9th ed.) Citation

Hepple, Peter. Natural Gas: Proceedings of a Symposium Held by the Exploration and Production Group of the Institute of Petroleum London, 17. 6. 1966. Inst. of Petroleum <<[u.a.]>>, 1966.